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SATO CL412E service manual Print Quality Problems

Models: CL412E

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Page 150

Section 8. Troubleshooting

Print Quality Problems

	Symtom	Probable Cause	Suggested Corrective Action

	LABEL LED	Label sensor blocked	Clean label sensor
	0n	Label sensor blocked	Clean label sensor
	0n

		Incorrect label sensor threshold	Adjust label sensor threshold
		setting	(Sec. 4.6 & 4.7)
		Platen drive malfunction	See Section 6.8

	Ribbon LED	Ribbon supply roll empty	Replenish ribbon supply
	on	Ribbon supply roll empty	Replenish ribbon supply
	on

		Ribbon supply out of alignment	Realign ribbon sensor

		Ribbon sensor blocked	Clean ribbon sensor

		No cardboard core on ribbon rewind	Use cardboard core on ribbon rewind

Page 8-14

SATO CL408e/CL412e Service Manual

PN 9001078 Rev. B

Image 150

SATO CL412E service manual Print Quality Problems

Contents

CL408e/CL412e Printers Sato America, Inc Table of Contents Mechanical Adjustments Optional Accessories PN 9001078 Rev. B Section OverviewPhysical Characteristics Front Access Door Label OUT SlotTOP Access Printer Features Rear PanelMemory Card Slot Front Access Door Interlock Ribbon Supply SpindleLabel Label GuideFor Optional DispenserSensors Ribbon Motion SensorLabel Sensor Operation Panel Line KEY PRINT/OFFSET/PITCH PotentiometersLine KEY ConnectorLCD Display Panel Potentiometers PrintInstallation Considerations Optional AccessoriesAccessory General Printer Specifications Environment & ApprovalsGeneral Printer Specifications CPU Character Fonts Specification CL408e CL412e Bar CodesDip Switch Settings DSW1RS232 Transmit/Receive Setting located on RS232 I/F Module SettingPrinter Set up DSW2DSW3 External Signal Interface Setting DSW3 Default Settings Dip Switch SelectionsLCD Panel Configuration Mode KEY Sequence Initial DisplayQTY LCD Panel Normal ModeInitializing Rom 000000Step Procedure Print Speed AdjustmentPitch Offset Adjustment Print speed 4 5C D E F G LCD Panel- Normal Mode Cancel print job Yes noCancel print job Cancel Print JobAuto online Initializing Advanced mode RomLCD Panel- Advanced Mode Zero Slash+0000 LCD Panel Advanced ModePrint offset Set calendarCalendar 00/00/00 Ignore CR/LF Ignore cr/lfCover open sensor Yes No Character PitchAdvanced Mode Card Mode LCD Printer Card ModeMem Select CC1 LCD Panel Card Mode Copy start Yes noCard -MemoryCopy SATOFont y/n LCD Panel CardMode Card -MemoryCopy All y/n Card memory CopyingMemory -cardCopy All Memory- card copy copyingCard -memoryCopy Program y/n Card- memory copy copyingCard-Memory Copy Program Y/N Memory-cardCopy Program y/n Memory-Card Copy Program Y/NCard format Yes no Memory format Yes noCard Format Yes No Gap x.xv input Service modeLCD Panel Service Mode Gap X.XV InputGap x.xv input Eye x.xv input Eye InputReprint w/feed yes no Feed on error yes noAuto online feed yes no Auto Online Feed Yes NoForward/backfeed distance default EXt pin9 Select Mode Mode2Select language english Ribbon near end Enable disable Service ModeIgnore can/dle Yes no Counters Hd dsp cut life Counters modeLCD Panel Counters Mode Head Count clear Yes noTest print mode configuration Test Print ModeDefault Setting Mode Default setting Yes noLCD Panel Test Print Mode Test print SizeDiPSw2-4 on-off Factory modeInitializing Counter clear allLCD Panel Maintenance Mode All Clear Mode All clear modeCounter all clear All clear mode Completed All clear Counter eepromLCD Panel Clear Non-Standard Protocol Download User Defined Protocol CodesLCD Panel Download User Defined Protocol Codes Hex Dump ModeInitializing Rom Online Qty000000 User Download Press the Line Key CountinuedLCD Panel -Firmware Download Mode Initializing Flash downloadConfiguration Sample Test LabelsMemory Head Check Factory InterfaceSpecifications Interface TypesCentronics RS232C Serial USB Interface Ethernet Receive Buffer Multi Job BufferIeee 1284 Parallel Interface Data StreamsDirection PIN SignalPIN PIN Assignments Ieee 1284 Cable ENDGeneral Specifications Electrical SpecificationsRS232C Serial Interface Host Interconnection Cable RequirementsDB9 PrinterSignal Description Ready/Busy Flow ControlUniversal Serial Bus USB Interface On/X-Off Flow ControlEthernet Interface Bi-Directional CommunicationsAccessory EXT Connector Pin AssignmentsStandard Operation Error Signals Repeat PrintInterface Specifications Electrical Checks and Adjustments Steps Prior to Some Procedures Remove 2 Screws Holding the Side Cover To the Outside FrameVR5 IM DC Power Voltage ChecksPower Supply Main PCB VR4 GAP VR1 OFS Test Point VR2 DEM VR3 CEMain PCB TP Test Module To PCB Test Point @ CN13 Connector Nibs onConnect TP Test Module to PCB Test Point @ Receptacle onTest Point Chart Potentiometer Assignments & Adjustments VR5 IM 5a Print Position Adjustment PITCH-VR Step Procedure5b Print Position Adjustment Refer to .2 for access to main PCBTest print Press the feed key Label Gap Adjustment Refer to .2 for access to main PCBEye-Mark Adjustment Offset Label Stop Position Adjustment OFFSET-VRInitializing Online Ribbon end9a Ribbon Sensor Operation Verification 9b Ribbon Sensor Voltage Checking Ribbon Sensor Voltage Checking High Value ~Print Darkness Adjustment Adjust Pitch Potentiometer For Optimum Print Step ProcedureMechanicalAdjustments# Ribbon Clutch Adjustments Raise the TOP Access Door Open the FrontCore Locking Screw is Inside Adjust NUT Tension Gauge Rewind String Empty RibbonUnwind Ribbon Spindle Tension Gauge Ribbon Unwind Clutch Adjustment Ribbon Guide Plate Adjustment Guide PlateTear Plate Adjustment FigsLIP Mounting Screws Adjustment Marks Ribbon Adjust Platescrews Print Head Position AlignmentPrint Head Balance Adjustment Loosen ScrewPrint Head Alignment Adjustment Indexing Pointer Shifts Head BACKWARD/FORWARDTiming Belt Tension Adjustment Timing Belts Motor Mounting ScrewsReplacementProcedures$ Replacing the Main Circuit Board Replacing the Main Circuit Board Disconnect Cable Disconnect Cables Memory Module PCB Replacing the Main Circuit Board Replacing the Fuses Back of Printer Fuse Under CoverRemoving and Replacing the Internal Fuses Fuses Main PC BoardReplacing the Power Supply Remove Screws Power Supply Detach Connectors Detach Connector Remove Screws Replacing the Stepper MotorStepper Detach Connector Loosen 4 Stepper Motor Mounting Screws Replacing the Timing BeltsRewind Spindle Center Screw Replacing the Print Head Replacing the Print Head PN 9001078 Rev. a Replacing the Platen Platen Remove Timing Belts MotorOpen the Front Access Door Replacing the Ribbon Drive Clutch WashersList 6A See Item List 6A Remove & InstallParts in this Order Rewind Spindle Unwind SpindleAssemble Item 9A/9B Item 11 Teeth Facing Outward to Engage Item 10 Felt WasherWith 2 Screws Holes Disk PlateLeft Side of Printer Replacing the Ribbon Motion SensorRemove Screw Sensor Display Panel PCBReplacing the Label Sensor Remove ScrewsInstalled in Printer Paper Guide Label Sensor Assembly Slide Cable Through Hole in Center Frame Label Sensor withReplacing the Label Sensor Module Replacing the Head Open Switch Detach Connectors Remove Screws Replacing the Display Panel PCBFactoryResets Factory Settings/Test Print Small largeFactory mode Clear Head CountersCounter clear Dis Clear Dispenser CounterCounter clear cut Clear Cutter CounterCounter all clear completed All clear mode Clear EepromSample Test Prints Large Test Print Small Test PrintFactory Resets Troubleshooting Initial Check List IEEE1284 Parallel InterfaceIEEE1284 Parallel Interface Universal Serial BUS USB Installation Problems Printer Does Not Come Up Ready Lan Ethernet InterfaceIntermittent Problems NetWare Troubleshooting Windows NT/LAN Server Troubleshooting Windows NT/LAN Server Troubleshooting Error Signals LEDTroubleshooting Tables Print Quality ProblemsPrint Quality Problems Error LED Print Quality Problems Factory Default Head Pattern ExamplesPoor Head Head Pattern Examples Hex Dump Diagnostic Labels Print Buffer Hex DumpReceive Buffer Hex Dump PN 9001078 Rev.B OptionalAccessories Label Cutter Kit Installation Guillotine Type Mounting Bracket PAN Head Screws Self TappingRemove Front Door Mounting Brackets Remove 2 Screws Label Dispenser Installation Peel BAR PAN Head ScrewsStrike Plate LH Cover Front Door RH CoverFront Door To be Removed Step Raise RH Cover Loosen 2 Inside Screws Holding LH LH Cover Loosen 4 Screws Horizontal With 2 Self TappingPeel BAR Existing Ribbon Tension Plate Remove Ribbon Tension Plate Position Ribbon Tension Plate Over Peel BAR Existing RibbonLabel Dispenser Installation Spindle by Inserting Over Label RollLabels Idle Roller Label Backing Drive Label Dispenser FrontHead Latch Label Dispenser Pins 1 & 2 Must be in UPTurn Potentiometer to Adjust Label Taken Sensor Step Front Door Magnetic DoorPcmcia Memory Expansion Installation Lifting Upwards Holding EXT Connector To CabinetOptional Accessories Pcmcia Memory Expansion Installation Main PCB Board Showing Where Memory Board will be Installed Memory PCB Board Main PCB 37SECURE from Underside of Main PCB Board withFlash Memory Expansion Installation Indexing Notches Flash Memory Expansion Installation Real Time Clock Installation Rev.B Real Time Clock Installation Factory Reset Procedure Set calendar Yes Set CalendarRev. B Optional Accessories Spare Parts List Frame Assembly Item no Code Description QTY Plain Washer Print Head Assembly Print Head Assembly Head Frame Head Pressure Bracket Ribbon Assembly Ribbon Assembly Ribbon Assembly Guide Plate B Base Cover Assembly Base Cover Assembly Base Cover Assembly Base Cover Assembly Item no Description QTYMotor Bracket Cable Protector Main PCB Assembly Interface Options Pcmcia Memory Option Cutter Assembly Option Cutter SET Dispenser Assembly Option Dispenser Assembly Option Dispenser Assembly Option Dispense Frame Flange Parts List Index Index-2 Index-3